112091109 has 12 divisors (see below), whose sum is σ = 161836416. Its totient is φ = 68978832.

The previous prime is 112091107. The next prime is 112091117. The reversal of 112091109 is 901190211.

It is not a de Polignac number, because 112091109 - 2¹ = 112091107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112091101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110037 + ... + 111050.

It is an arithmetic number, because the mean of its divisors is an integer number (13486368).

Almost surely, 2^112091109 is an apocalyptic number.

It is an amenable number.

112091109 is a deficient number, since it is larger than the sum of its proper divisors (49745307).

112091109 is a wasteful number, since it uses less digits than its factorization.

112091109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221116 (or 221103 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 112091109 is about 10587.3088648627. The cubic root of 112091109 is about 482.1591231541.

It can be divided in two parts, 1120 and 91109, that added together give a palindrome (92229).

The spelling of 112091109 in words is "one hundred twelve million, ninety-one thousand, one hundred nine".